The Hi & Light Collar is an ultralight dog collar with a minimalist design. Built with webbing inspired by rock climbing slings and runners known for their impressive strength-to-weight ratio, the Hi & Light Collar keeps it simple with a strong side-release buckle for easy on/off and Ruffwear&';s signature collar features: an aluminum D-ring, a piton-inspired separate ID tag attachment point, and a silicone tag silencer. Features Light & strong Easy on/off UHMwPE (Ultra High Molecular-weight Polyethylene) webbing is light, strong, and colorfast Aluminum D-ring provides a secure leash attachment point Easily add or remove tags with Quick Ring(TM) Silicone tag silencer Separate piton-inspired ID attachment point Webbing: Ultra High Molecular-weight Polyethylene XS SM Med LG 9" - 11" 11" - 14" 14" - 20" 20" - 26"